Question

given f(x)=x^2 7 and g(x)=x-4/x. find (g o f)(-1). hint: (g o f)(-1)=g(f(-1))

Answer 1

I hope this helps you


x= -1 f (-1)=(-1)^2+7=1+7=8



g (f (-1))= g (8)


x=8 g (8)= 8-4/8=4/8=1/2